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A series of vulnerable virtual machine images with documentation to teach Linux, Apache, PHP, MySQL security.
A comprehensive guide to Nessus, a vulnerability scanner, covering data directories, binary directories, logs directories, plugin directories, advanced settings, API, and good practices.
A platform offering hacking missions to test and enhance skills.
Frontpage of the IO wargame with various versions and connection details.
Linux-based operating system intentionally vulnerable for cybersecurity practice.
A live archive of DEF CON CTF challenges, vulnerable by design, for hackers to play safely.
